Flood Risk Evaluation in Ungauged Coastal Areas: The Case Study of Ippocampo (Southern Italy)
Abstract
:1. Introduction
2. The Study Area
3. Materials and Methods
3.1. Numerical Model Description
3.2. Rough Data Collection
3.3. Hydrologic Modeling
3.4. Coastal Modeling
3.5. Risk Assessment
4. Results and Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sub-Catchment | CN(III) | Q Peak (m3/s) | |||
---|---|---|---|---|---|
TR = 1 year | TR = 30 years | TR = 50 years | TR = 100 years | ||
TRIBUTARY 1 | 87 | 11.08 | 29.64 | 34.75 | 41.70 |
TRIBUTARY 2 | 86 | 1.05 | 13.26 | 15.48 | 18.56 |
TRIBUTARY 3 | 88 | 0.83 | 9.39 | 10.92 | 13.04 |
CHANNEL 1 | 88 | 0.59 | 7.51 | 8.76 | 10.51 |
CHANNEL 2 | 90 | 0.53 | 4.66 | 5.36 | 6.33 |
CHANNEL 3 | 90 | 0.66 | 5.33 | 6.12 | 7.19 |
CHANNEL 4 UPSTREAM | 90 | 1.02 | 12.19 | 14.20 | 16.99 |
CHANNEL 4 DOWNSTREAM | 87 | 0.32 | 2.97 | 3.43 | 4.06 |
PELUSO 1 | 89 | 20.70 | 55.35 | 64.90 | 77.87 |
PELUSO 2 | 92 | 0.13 | 1.24 | 1.43 | 1.69 |
PELUSO 3 | 92 | 0.09 | 0.95 | 1.11 | 1.32 |
PELUSO 4 | 89 | 0.02 | 0.29 | 0.33 | 0.40 |
Sea Level | TR = 1 year | TR = 30 years | TR = 50 years | TR = 100 years |
---|---|---|---|---|
Hm0 (m) | 3.4 | 5.63 | 6.03 | 6.04 |
R2% (m) | 0.68 | 1.12 | 1.20 | 1.27 |
Tidal residual (m) | 0.28 | 0.36 | 0.38 | 0.4 |
Astronomical tide (m) | 0.2 | 0.2 | 0.2 | 0.2 |
Total sea level (m) | 1.16 | 1.68 | 1.78 | 1.87 |
Categories of Elements at Risk | Vulnerability (Ve) | ||
---|---|---|---|
h (m); v (m/s) | |||
Buildings | Ve(h) = 0.5∙h | ||
Other structures | 0.5∙h | if v < 2 | |
Ve(h,v) = | |||
0.35∙h∙(1 + 0.25∙v) | if v ≥ 2 | ||
Specialized land use | Ve(h,v) = | h | if v < 0.25 |
h∙(1 + v) | if v ≥ 0.25 | ||
Unspecialized land use | Ve(h,v) = | 0.25∙h | if v < 0.25 |
0.25∙h∙(1 + v) | if v ≥ 0.25 | ||
Infrastructures | Ve(h)—Damage function from [40,41] |
Elements at Risk | TR | Exceedance Probability | Amount (sqm) | Economic Value | Consequences | Total Economic Losses |
---|---|---|---|---|---|---|
Buildings | 1 | 1 | 163 | €891,831 | €163,634 | |
Other structures | 1 | 1 | 365 | €35,470 | €4661 | |
Road | 1 | 1 | 36,762 | €1,028,209 | €207,380 | |
Specialized land use | 1 | 1 | 1903 | €4563 | €1783 | |
Unspecialized land use | 1 | 1 | 585,449 | €315,691 | €34,665 | €412,123 |
Buildings | 30 | 0.033 | 1864 | €3,432,475 | €633,715 | |
Other structures | 30 | 0.033 | 632 | €61,271 | €13,060 | |
Road | 30 | 0.033 | 57,393 | €1,604,410 | €414,963 | |
Specialized land use | 30 | 0.033 | 1903 | €4563 | €4080 | |
Unspecialized land use | 30 | 0.033 | 728,335 | €421,024 | €84,052 | €1,149,870 |
Buildings | 50 | 0.02 | 2234 | €4,379,509 | €774,118 | |
Other structures | 50 | 0.02 | 632 | €61,271 | €13,640 | |
Road | 50 | 0.02 | 59,299 | €1,657,620 | €435,358 | |
Specialized land use | 50 | 0.02 | 1925 | €4616 | €4212 | |
Unspecialized land use | 50 | 0.02 | 739,636 | €427,151 | €88,295 | €1,315,623 |
Buildings | 100 | 0.01 | 2407 | €4,721,521 | €880,093 | |
Other structures | 100 | 0.01 | 632 | €61,271 | €14,794 | |
Road | 100 | 0.01 | 64,811 | €1,811,336 | €474,252 | |
Specialized land use | 100 | 0.01 | 1,925.01 | €4616 | €4319 | |
Unspecialized land use | 100 | 0.01 | 759,036 | €441,781 | €96,043 | €1,469,500 |
Elements at Risk | TR | Exceedance Probability | Amount (sqm) | Economic Value | Consequences | Total Economic Losses |
---|---|---|---|---|---|---|
Buildings | 1 | 1 | 917 | €1,777,765 | €271,608 | |
Other structures | 1 | 1 | 365 | €31,210 | €3689 | |
Road | 1 | 1 | 98,534 | €2,703,967 | €517,629 | |
Specialized land use | 1 | 1 | 56,000 | €127,087 | €49,089 | |
Unspecialized land use | 1 | 1 | 4,050,000 | €6,241,545 | €466,578 | €1,308,593 |
Buildings | 30 | 0.033 | 5967 | €10,291,706 | €1,867,053 | |
Other structures | 30 | 0.033 | 633 | €61,568 | €13,090 | |
Road | 30 | 0.033 | 270,945 | €7,408,776 | €1,592,121 | |
Specialized land use | 30 | 0.033 | 316,000 | €559,501 | €251,005 | |
Unspecialized land use | 30 | 0.033 | 12,780,000 | €21,062,380 | €1,912,155 | €5,635,423 |
Buildings | 50 | 0.02 | 7030 | €11,999,597 | €2,233,376 | |
Other structures | 50 | 0.02 | 633 | €61,568 | €13,759 | |
Road | 50 | 0.02 | 302,982 | €8,278,693 | €1,817,806 | |
Specialized land use | 50 | 0.02 | 400,000 | €683,770 | €319,958 | |
Unspecialized land use | 50 | 0.02 | 14,440,000 | €23,938,683 | €2,291,826 | €6,676,725 |
Buildings | 100 | 0.01 | 7931 | €13,425,906 | €2,678,795 | |
Other structures | 100 | 0.01 | 633 | €61,568 | €14,847 | |
Road | 100 | 0.01 | 350,619 | €9,558,971 | €2,125,702 | |
Specialized land use | 100 | 0.01 | 524,000 | €861,115 | €412,420 | |
Unspecialized land use | 100 | 0.01 | 16,680,000 | €27,819,598 | €2,826,192 | €8,057,956 |
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Apollonio, C.; Bruno, M.F.; Iemmolo, G.; Molfetta, M.G.; Pellicani, R. Flood Risk Evaluation in Ungauged Coastal Areas: The Case Study of Ippocampo (Southern Italy). Water 2020, 12, 1466. https://doi.org/10.3390/w12051466
Apollonio C, Bruno MF, Iemmolo G, Molfetta MG, Pellicani R. Flood Risk Evaluation in Ungauged Coastal Areas: The Case Study of Ippocampo (Southern Italy). Water. 2020; 12(5):1466. https://doi.org/10.3390/w12051466
Chicago/Turabian StyleApollonio, Ciro, Maria Francesca Bruno, Gabriele Iemmolo, Matteo Gianluca Molfetta, and Roberta Pellicani. 2020. "Flood Risk Evaluation in Ungauged Coastal Areas: The Case Study of Ippocampo (Southern Italy)" Water 12, no. 5: 1466. https://doi.org/10.3390/w12051466